Tool-holder.



JNO. 723,718.

BATENTBD MAR, 24, 1903.v 11B. Nons. TooL HOLDER. APPLIOATIOhH FILED DEO. 26, 1901.

ferrea??? UNrrnD STATES' ATENT OFFICE.

DANIEL E. NORRIS, OF TIONA, PENNSYLVANIA, ASSIGNOR OF TWO-THIRDS rFO WV. C. NORRIS, OF TIONA, PENNSYLVANIA.

TOOL-HOLDER.

SPECIFICATION forming part ofLe-tters Patent No. 723,718, dated March 24, 1903.

Application led December 26, 1901. Serial No. 87,203. (No model.)

To ad whom t may concern;

Be it known that I, DANEL NORR'IS, a citizen ofthe United States, residing at Tiona, in the county of Warren and State of Pennsylvania, have invented certain new and useful Improvements in Tool-Holders; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it 1o appertains to make and use the same.

This invention relates to tool-holders; and it consists in certain improvements in the construction thereof, as will be hereinafter fully described, and pointed out in the claims.

The object of the invention is to provide a tool-holder simple of construction, of slight cost, but still eifective for the vpurpose for which it is designed.

The invention is illustrated in the accomzo panying drawings, as follows:

Figure 1 shows a tool-holder in place, the tool-postbetween shown by dotted lines. Fig. 2 shows one of the parts of .the holder. Fig.` 3 shows an end view of the holder with auxiliary z5 clamp. Fig. et shows a side view of the holder provided with an auxiliary clamp.

The holder is formed of two duplicate parts A A. Each part is formed with a grooveor channel tt at one end, forming a carrier for 3o the tool, and at the other end with a tenon or pressure-piece'ct. T he sides of 'the channel or groove a extend beyond the outer surface of the tool C and are provided with the perforations a3. The pressure-,piece or tenon o.

is provided withl the slot a2. When the parts are assembled, the perforations a3 register with the slots a2. The pins B are secured in the perforations a3. With the tool-holder thus assembledthere isja continuous groove or 4o opening throughitforthe tool, and this is at a slight inclination, extending from near the upper Asurface 0f thetool at one end to the lower surfacenof'th'e opposite end, or vice versa. The two-parts being duplicate, the

cost of manufacture is materially reduced. Theconnection between the parts I term a loose connection and, more speciiically, a pin-and-slot connection. This relative movement between the parts allows the tool- 5o holder to be suiiiciently separated for the removal or insertion of the tool and to be moved into engagement with the tool.

It will benoted that the extended sides of the channel form guides for the pressurepiece as well as making a convenient part to complete the connection between the parts. The loose connection permits, but also limits, the opening movement of the parts so guided.

In order that the holder may operate with small lengths of, tool or to strengthen the 6o holder where heavy work is required, I providethe clamp D. This clamp is in the form of a strap. The lower surface of the strap is rounded, as shown by the dotted lines at d in Fig. 4. The upper part of the strap has a head d', in which is arranged a set-screw D. The part d is arranged to operate in agroove a4 in the parts ofthe tool-h0lder. By mak` ing this groove concave and the part d of the strap convex the strap will adjust itself and 7o not put undue strain on either side of the strap if it is lnot perfectly perpendicular to the surfaces of the'holder.

What I claim as new is l. In a tool-holder, the combination of a carrier having achannel for the reception of a tool, the base or 'seat of said channel being inclined; a pressure-piece arranged to engage the tool,in the channel at one end, said pres' sure-piece being provided with a channel at 8o its opposite end for the reception of the tool.

2. In a tool-holder, the combination of a carrier having a channel for the reception of a tool, with a side of the channel extending beyond the outer surfaces of the tool; a pressure-'piece arranged to contact the outer surfaces of the tool in the channel at one end, and being provided with a channel at the other end for the reception of nthe -tool;.and a loose connection between the extended side 9o of the carrier and the pressure-piece.

3. In a toolholder, the combination of the two parts, each providedfwith a channel at one end for the reception ofthe tool and at the opposite end with a pressure-piece or tenon arranged to enter the channel of its companion piece.

i el. In a tool-holder, the combination of the two parts, each provided with a channel at one end for the reception of the tool and at roo the opposite end with fr pressure-piece or with the slot d2; and a pin, l), arranged in the tenou arranged to enter the channel of its perfomtions as, mid extending through the companion piece; and a loose connection beslot, o?.

tween said parts. In testimony whereof I affix my signature 5 5. Inv a tool-holder, the combination of the in presence of two Witnesses.

parts A A provided with the channels a, at DANIEL E NORRIS one end and a tenon or pressure-piece a', at

the opposite end,the sides of the channels Witnesses:

being provided with the perforabions CL3, and W. H. ALLEN, xo the pressure-piece or tenon a/ being provided O. C. ALLEN. 

